Siemens SINUMERIK codes
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Siemens SINUMERIK Controller

Servo/Axis · Intermediate · 20-40 minutes

Alarm 61557

Siemens 840D 61557 - Channel block: Impossible chamfer and radius of right edge of

The alarm can be triggered by the following grinding cycle: CYCLE432 Remedy: Check values in grinding wheel data

Siemens SINUMERIKServo/AxisIntermediate20-40 minutes

61557

Siemens 840D 61557 - Channel block: Impossible chamfer and radius of right edge of

Channel block: Impossible chamfer and radius of right edge of

The alarm can be triggered by the following grinding cycle: CYCLE432 Remedy: Check values in grinding wheel data

Safety

  • Refer to Siemens documentation
  • Ensure qualified technician performs repairs

Common Causes

  • Conflicting chamfer and radius values specified in the same block where both cannot physically coexist on the workpiece edge
  • Grinding wheel data parameters in CYCLE432 contain incompatible geometry specifications
  • Part program contains simultaneous chamfer and radius commands that exceed machine kinematic limits
  • Incorrect tool offset or grinding wheel compensation values preventing proper edge geometry execution

Troubleshooting Steps

  1. 1Review the part program block triggering the alarm and verify chamfer and radius values are not mutually exclusive for the specified edge geometry
  2. 2Open CYCLE432 grinding cycle parameters and cross-reference grinding wheel data against workpiece edge requirements
  3. 3Check machine documentation to confirm which edge geometries (chamfer OR radius, not both) are achievable with current tool setup
  4. 4Verify tool offset values and grinding wheel compensation in the tool database match the physical tool installed
  5. 5Modify program to apply either chamfer OR radius to the edge in question, not both simultaneously in the same block

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